Catastrophic loss of superconductivity in ion-irradiated films of YBa2Cu3O7−δ

12 September 1988

journal article
research article
Published by AIP Publishing in Applied Physics Letters

Vol. 53 (11) , 1001-1003
https://doi.org/10.1063/1.100649

Abstract

We have investigated the effects of low fluence (14 cm⁻² ) 63 MeV H⁺ and 65 MeV He²⁺ irradiation of prototype thin films of YBa₂Cu₃O_7−δ produced by a plasma‐arc spray technique. The observed changes in the resistance versus temperature behavior are much more dramatic than that observed for films produced by other techniques and resembles qualitatively a bond percolation threshold. The radiation sensitivity of these plasma‐arc spray films is concluded to be due to poor intergranular characteristics. This information is being used to modify the processing steps to improve the properties of films produced by this technique.

Keywords

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